Radon depletion in xenon boil-off gas S. Bruenner, D. Cichon, S. Lindemann, T. Marrodán Undagoitia and H. Simgen Eur. Phys. J. C, 77 3 (2017) 143 Published online: 04 March 2017 DOI: 10.1140/epjc/s10052-017-4676-1